package com.stylefeng.guns.core.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CorsFilter implements Filter {
	final static org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(CorsFilter.class);
	
	FilterConfig filterConfig = null;
	   
	public void init(FilterConfig filterConfig) {
		  this.filterConfig = filterConfig;
	}

	public void destroy() {
		   this.filterConfig = null;
	}

	public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
			throws IOException, ServletException {
		HttpServletResponse response = (HttpServletResponse) res;
		HttpServletRequest reqs = (HttpServletRequest) req;
		response.setHeader("Access-Control-Allow-Origin", "*");
		response.setHeader("Access-Control-Allow-Credentials", "true");
		response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE,PUT");
		response.setHeader("Access-Control-Max-Age", "3600");
		response.setHeader("Access-Control-Allow-Headers", "x-requested-with");
		chain.doFilter(req, res);
	}

	
}
